Installer Series Includes Aluminized Steel and Top Performance at a Value

XP Series, built from T-409 stainless steel

"Very smooth sounding, louder under heavy loads, near silent while cruising. Exactly what you want for being able to enjoy the sound from inside the car without being 'that guy' from the outside." - Jason P. Manor, TX

Installer Series Includes Aluminized Steel and Top Performance at a Value

XP Series, built from T-409 stainless steel

"Very smooth sounding, louder under heavy loads, near silent while cruising. Exactly what you want for being able to enjoy the sound from inside the car without being 'that guy' from the outside." - Jason P. Manor, TX